Threat Feed
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criticalbug_reportVulnerabilityCisco Secure FMC auth bypass CVE-2026-20079 actively exploited
Cisco Secure Firewall Management Center (FMC) Software and Cisco Security Cloud Control Firewall Management. All unpatched versions vulnerable. Cloud-hosted Security Cloud Control already patched by Cisco.
criticalbug_reportVulnerabilityCisco patches critical RCE in Nexus 9000 switches and 7 IOS XR flaws
Cisco Silicon One-based Nexus 9000 switches (10 models including N9324C-SE1U, N9348Y2C6D-SE1U, N9364E-SG2-O/Q, N9396T12C-SE1, N9348Y12C-SE1, N9396Y12C-SE1, N9336C-SE1, N9K-C9804, N9K-C9808) running NX-OS 10.3(1) through 10.6(3s).
criticalbug_reportVulnerabilityCisco NX-OS RCE vulnerability requires immediate patching
Cisco NX-OS operating system. Specific affected versions not disclosed in available information. Impacts Nexus switches and potentially other devices running NX-OS.
highperson_alertThreat ActorFire Ant compromises Cisco routers for network surveillance
Fire Ant is a Chinese espionage-focused threat actor attributed by Sygnia, with operational overlap to UNC3886 (previously documented by Google). The group targets critical infrastructure and high-value networks through a "target behind the target" s…
highperson_alertThreat ActorFire Ant Expands Espionage to Cisco Routers and TACACS Servers
Fire Ant is a China-linked cyber espionage actor that has conducted long-running campaigns targeting network infrastructure and virtualization platforms.
criticalbug_reportVulnerabilityCisco patches nine flaws in Crosswork and Secure Workload; five rated 10.0
Cisco Crosswork Data Gateway, Crosswork Network Controller, Crosswork Planning (Release 7.2.1 and earlier); Cisco Secure Workload SaaS and on-premises (Release 3.10 and earlier, Release 4.0).
criticalbug_reportVulnerabilityCisco Secure Firewall DoS flaw under active exploitation
Cisco Secure Firewall products (specific versions not disclosed in available data). Organizations using Cisco ASA, FTD, or Firepower appliances should assume exposure until vendor advisory is reviewed.
highbug_reportVulnerabilityCisco ASA/FTD remote DoS flaw exploited in wild, CISA orders patch by Aug 14
Cisco Secure Firewall ASA Software (versions 9.16.1, 9.18.1, 9.20, 9.22, 9.23, 9.24) and FTD Software (versions 7.0, 7.2, 7.4, 7.6, 7.7, 10.0) with IKEv2 Remote Access VPN, SSL-VPN, or Zero Trust Network Access enabled.
highbug_reportVulnerabilityCisco ASA/FTD VPN flaw CVE-2026-20349 actively exploited for DoS
Cisco Secure Firewall ASA (versions 9.16, 9.18, 9.20, 9.22, 9.23, 9.24) and Threat Defense FTD (versions 7.0, 7.2, 7.4, 7.6, 7.7, 10.0) with Remote Access SSL VPN, IKEv2 Remote Access VPN with client services, or Zero Trust Network Access enabled.
criticalbug_reportVulnerabilityCisco patches 12 critical SD-WAN and IOS XE flaws, three rated 9.8+
Cisco Catalyst SD-WAN Software (all versions prior to 20.9, versions 20.9–26.1); Cisco IOS XE Software versions 17.9–26.1 running in autonomous or controller mode; Cisco Integrated Management Controller (IMC) web interface.
criticalbug_reportVulnerabilityCritical Cisco Catalyst SD-WAN flaws require immediate patching
Cisco Catalyst SD-WAN Software (specific versions not disclosed in advisory). Scope: SD-WAN infrastructure components used for enterprise WAN connectivity and management.
highbug_reportVulnerabilityCisco IOS/IOS XE vulnerabilities require immediate patching per CERT.BE
Cisco IOS and IOS XE platforms. Specific affected versions not provided in advisory. Multiple vulnerabilities of high severity impact network infrastructure devices including routers and switches running these operating systems.
criticalbug_reportVulnerabilityCisco Secure Firewall Management Center under active exploitation
Cisco Secure Firewall Management Center (formerly Firepower Management Center). Specific affected versions not disclosed in available data. Vulnerability details including CVE identifier not yet published.